Sewing-machine shuttle



Patented Mar. 18, 1924 EJMFEE erases reenter EDGAR D. HUME, OF GOLLINGSWOOD, NEW JERSEY, ASSIGNOR TO SUMMIT THREAD COMPANY, OF EAST HALVIPTON, CONNECTICUT, A CORPORATION OF MAINE.

SEWING-MACHINE SHUTTLE.

Application filed July 28, 1222.. Serial No. 578,030.

To all whom it may concern Be it known that I, EDGAR D. HUME, a citizen of the United States, residing at Collingswood, in the county of Camden and State of New Jersey, have invented new and useful Improvements in Sewing-Machine Shuttles, of which the following is a speciii cation. I

This invention relates to a shuttle which comprises a body forming a bobbin case adapted to receive and permit-the rotation of a bobbin, the case including a central bobbin post on which the hub or core of the bobbin is adapted to rotate.

The object of the invention is to adapt a shuttle characterized as stated, and adapted, as originally constructed, to be used with a metal bobbin, composed of'a flanged metal" spool and a winding of thread thereon, to be conveniently modified to adapt it for use with a ready-wound bobbin, composed of a flangeless cop tube and a universally-wound winding of thread thereon, the shuttle, when so adapted, including a springpressed metal disk bearing yieldingly onthe inner end of the bobbin, and preventing the entanglement or confinement of loose coils of thread displaced from the winding.

The invention is characterized by the improved means hereinafter described and claimed. whereby said disk is confined in the case, so that it is movable outward only to a predetermined extent, by a spring seated on the inner side portion of the shuttle body, and is prevented from being displaced inward sufficiently to objectionably compress said spring.

Of the accompanying drawings forming a part of this specification,-

Figures 1 and 2 are opposite side views, somewhat enlarged, of a shuttle embodying the invention.

Figure 3 is a more enlarged section on line 3--3 of Figure 1.

Figure l is a view similar to Figure 3, the bobbin being removed.

Figure 5 is a fragmentary perspective view, showing the bobbin post and a part of the inner side portion of the shuttle body.

Figure 6 is a perspective view showing the sleeve forming the post enlargement and abutment shoulder hereinafter described.

Figure 7' is a perspective view, showing the stop sleeve hereinafter described.

Figure 8 is a perspective view, showing thebobbin-supporting disk.

Figure 9 is a sectional view of the shuttle without'the parts characterizing 1'1heinven-,

tion.

The same reference characters indicate the same parts in all of the figures.

The body of a shuttle to which the improve ments characterizing my invention are applied includes an inner side portion 12, forming the inner end of a bobbin case, a circular curb 13, forming the bobbin case margin,

and a central tubular post 14, concentric with the curb. The parts 12, 13 and 14lform an annular space, which is open at one end, and is adapted to receive a bobbin which is rotatable on the post.

As shown by Figure 9, the shuttle is adapt ed to be used without the abutment shoulder, the stop sleeve, the bobbiirs'upporting' disk, and the spring hereinafter described, the metal hub of a flange'bobbin spool being applied to'the post, and releasably confined by a latch arm 16, having, a cam-shaped inner end 17, connected by. a pivot stud 18 with the outer end ofthe post. The latch may be confined either in the position shown by Figures 4 and 9, or in that shown by Figure 3, by a plunger 19, pressed by a spring 20 against the cam-shaped end '17. Said plunger is usually provided with a bobbinejecting finger 21, movable in a slot 22 in the post.

The construction shown by Figure 9,in cluding the parts thus far described, as well i as the parts shown by the drawings, and not described hereinafter, is common and well known, and is adapted for use with a socalled metal bobbin, which is confined in the ease by the latch when'the latter is in the po- 7 1 n Walulj coin obi. .J a s enlarge-me pert, en inner sleeve 2?, oi closely hug l. c on by telly tin-n ing 28, per ing fiIlQlJl' 2i, so

test

the outer 1 tiectiie outer stop which is i ei ably cliviclecl diagonally one shle as shown at 33 and is pr-etc" ebl i s-(lo of ten: perecl steel, The thiclme e stop sleeve 82 is greater than that of the T111611 sle ve 27 so that the inner of the stop sleeve constitutes an inwardly facing stop shoulder, which bears on one. overhangs he abutment shoulder an is adapted to n 1 st the dish are 4,

in P,

29 in the position shown by l The stop sleeve f cti-onzilly hugs me post,

so that it is not eccicl itchy mo ible there tine-ht shoulder limits t 11. i JtDL i stop sleeve cannot be press l The npa o oi: 1 as a sliding it on the 1 surface OI the earn 13, and prelt Will be seen that the parts CllttlftCi-Qll2 ing invention may be qtnclzlv and conveniently applied to a Sil J- he bony 1 w i 1 1 4. 7 1U. 101' use With inetei to a tent tl e lhe enlargement which forms the ebut lot 26 may be an integral inechine shuttle, the coin with P. boclv in'cluclm a side o1- I in 1 i i, circular curb, a central post,

znez s adapted to conhne a bobbin on the ant; stlgnstzi ble to and from operative s eeve adapted to be posivii i A e 5% shout tl 1* end of the nest, dish on e sleeve and ties to move lo"ie'1- 7 a 1 ai 1 1 L) u thereon stop oetechaoly engeget between the enter cntl hereof I the inner end oi t lent limiting inwescl cent the side portion of the shuttle b dy an lies to move longitudinally of the 1 0st,

spring iijitei'posetl between the disk {LDC s in side portion of the body, a sleeve so.-

a nsteble on the post and constituting a stop imit outward movementof the disk on- @i' pw sure of the spring, and means for t ii ward movement of said sleeve, urpose described,

e sewing machine shuttle, the comoinetion With a body including a side pol circular curb, e centiel tubular post end means adapted to confine e bobbin on the post and table to and from operative posi of a o l: surrounding the post ecljecent siee portion of the shuttle body ant oxten substantially to the circular l body, at spring interposed he tween tlie disk side portion of the body, a sleeve fiictionclly engegin the post eonsti stop limiting outvve'rol inovement of the disk under the action of the sewing and en abutment on the post limiting lllWFtiCl movement of said sleeve. In testimony whereof l have affizzecl signature.

l). HUT-lit. 

